In the reanalysis of 35ClNO, two measured lines
were excluded from the fit since they show significant deviations. The
109,2-99,1 transition reported in
[66012] at
111 213.25 MHz is calculated 1.48 MHz higher in frequency with
an uncertainty of 0.14 MHz and the
180,18-170,17 line reported in
[66012] at
198 798.54 MHz is calculated 15.62 MHz lower in frequency with
an uncertainty of 0.18 MHz. The error in the
41,3-40,4 transition frequency reported in
[75010] has been
corrected to read 83 635.88 MHz. Very poor agreement was obtained in
the centrifugal distortion fit to the 20,2-10,1
transition and hyperfine splittings for 37ClNO. The
strongest components, the unresolved pair F = 7/2-5/2 and
F=5/2-3/2, are calculated 0.80 MHz higher than
observed and the F = 3/2-3/2 transition is calculated
1.32 MHz higher than observed. The hyperfine analysis included the three
components of the 10,1-00,0 transition and
the three unblended components of the 21,2­11,1
and 21,1­11,0 transitions. The discrepancy
could arise from ignoring the 14N hyperfine splitting,
although this appears unlikely since these splittings were apparently
unresolved.